MARQUETTE, Mich. (AP) An investigation into the drowning of an 18-year-old freshman on Northern Michigan University’s varsity women’s soccer team confirms that no one saw or heard her in distress in the water.

The school released preliminary Thursday information from its investigation into the Nov. 30 death of Arianna Alioto at the school’s Physical Education Instructional Facility in Marquette. Officials say autopsy results are expected in January and there’s no indication of foul play.

The school has said Alioto was alone in the pool when she was discovered after a team workout and a lifeguard had left when the workout ended.

Public safety director Mike Bath says investigators interviewed soccer team members, the coach, the lifeguard and rescuers.

The freshman midfielder from Columbia, Mo., redshirted this fall while recovering from a knee injury.

© Copyright 2012 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.